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Full text of "Text Book Of Mechanical Engineering"

SYNOPSIS  OF  LETTERING ADOPTED  IN
THIS  PART.

CAPITALS.

A     Area in square feet.

Bm    Bending moment.                       [efficient of discharge.

Modulus of transverse elasticity in Ibs. per sq. inch: Co-

' Larger diameter' in inches.

Modulus of direct elasticity in Ibs. per sq. inch.

Total stress in tons :    F = Fahrenheit.

Total stress in Ibs.

Tractive force to overcome friction : in Ibs.

Weight of a cubic foot of water: Centre of gravity.

Height or head in feet: Total heat.
H.P. Horse power per min. = 33000 foot pds.
I       Moment of inertia -{2 (area x r2)}.

Joule's equivalent.

Modulus of volumetric elasticity in Ibs. per sq. inch.

Specific heat of a gas at constant pressure ; in foot Ibs.

Length in feet.    [~ Kv = ditto at constant volume.

Latent heat.        [_CP and Cv = same quantities in heat

Poissoh's ratio.                                                   [units.

Number of revolutions per min.

Coefficient of bending stress.           [in Ibs. per sq. foot

Total pressure in Ibs.: Effort, or force applied: Pressure

C
D
E
F

G

H

J

K

Kp

L

Lh

M

N

O

P

Ptons Total pressure in tons.

Q

R
R"

Rt

S

T

To

U
V

w

X
Y
Z

Concrete of formula for struts
Radius in feet.
Larger radius in inches.
Reaction at supports.

7T2EI

/2

Water discharge
[in cub. ft. per sec.

[heat.
Sensible

Range of stress variation in Wohler formula

Number of teeth.

Twisting moment.

Greater tension in belt or rope.

Final temperature in heat mixtures.

Work put in.

Velocity in feet pec min.: Volume in cub. ft.

Weight or load in tons: Resistance, or force removed.

Number of bolts in flange coupling, cylinder cover, &c.

w ft
Concrete of formula for beam deflection  =p_

Modulus of section (in bending).
Ditto (in twisting).